Record urine output within +/- how many milliliters of the nurse’s reading?

Record urine output within +/- how many milliliters of the nurse’s reading?

• A. 10 mL
• B. 25 mL
• C. 50 mL
• D. 100 mL

Answer: (B)

Urine output measurement has built‑in room for small reading errors. In CNA practice, you’re expected to record within a modest margin of the actual amount to reflect the device’s precision and the normal variations in reading a graduated cylinder. A 25 mL allowance is the standard because cylinders are usually marked in 5–10 mL increments, and factors like reading at an angle (parallax), the meniscus shape, and tiny spills can shift the shown amount by a few milliliters. So, if your measurement is within ±25 mL of the nurse’s reading, it’s considered accurate for charting. To aim for this, read at eye level, use the bottom of the meniscus, and record to the smallest increment your device allows; if a discrepancy would exceed 25 mL, recheck the measurement.

Urine output measurement has built‑in room for small reading errors. In CNA practice, you’re expected to record within a modest margin of the actual amount to reflect the device’s precision and the normal variations in reading a graduated cylinder. A 25 mL allowance is the standard because cylinders are usually marked in 5–10 mL increments, and factors like reading at an angle (parallax), the meniscus shape, and tiny spills can shift the shown amount by a few milliliters. So, if your measurement is within ±25 mL of the nurse’s reading, it’s considered accurate for charting. To aim for this, read at eye level, use the bottom of the meniscus, and record to the smallest increment your device allows; if a discrepancy would exceed 25 mL, recheck the measurement.